Anchor



(No Model.) C. SI ED-AT.

ANCHOR.

No. 632,606. Patented Jan. 15,' 1895.

WITNESSES- INVENTEIR UNITED STATES PATENT OFF CE.

CLINTON: sPRoAT, or TAUNTON, MASSACHUSETTS.

ANCHOR.

I SPECIFICATION forming part of Letters Patent No. 532,606, datedJanuary 15, 1895. Application filed September 25 1894.. Serial No.524,050- (No model.)

To all whom it may concern: Be it known that I, CLINTON SPROAT, a citizen of the United States, residing at Taunton, in the county of Bristoland State of Massachusetts, have invented a new and useful Improvementin Anchors, of which the following is a specification.

This invention relates to that class of anchors in which a stock is notrequired and in which the palms and shank are in the same plane; and itis an improvement more especially upon the anchor described in LettersPatent of the United States numbered 115,011 and granted May 23, 1871,to Alfred r 5 B. Babbitt, to which reference is made.

. My improvement relates especially to a construction whereby when theanchor is moved by the lifting of the shank in such manner that theflukes are raised from their position in engagement with the bottom, theanchor will not rest on its head with the flukes raised but willimmediately roll or turn over so that the flukes will swing down againinto engagement with the bottom. This 2 5 movement of the anchor is acommon one and would occur, for example, if the vessel were passing overthe anchor.

, The improvement also has the effects of strengthening the anchor andcheapening its 0 construction. I

The nature of theimprovement is fully described below and illustrated inthe accompanying drawings, in which Figure 1 is a plan view of .the'anchor in 5 position. Fig. 2 is a side view or elevation of the same,the extreme position of the flukes in the ground being shown in brokenlines. Fig. 3 is a similar view with one of the flukes removed and thepivots shown in section.

Similar letters of reference indicate corresponding parts.

A represents the shank, provided with the usual eye a for attaching thecable, and pin b for securing a tripping line if desired.

5 B B are the flukes, each of which is integral and cast separate fromthe other. The flukes, which are exactly similar in shape, are securedtogether by the three rivets d e and f, and are pivotally secured to theshank A by the pin 9.

Roughly speaking, the general construction of the flukes with relationto the shank is similar to that illustrated in the Babbitt patent abovereferred to. The flukes are recessed at h in order to allow the shank Ato play, and the inner surfaces 70 serve asstops against which the innerend A of the shank strikes in order to limit its movement with relationto the flukes. It will be noticed, however, that both the inner andouter blades B B" of the flukes are extended well back from the pointsso that the necks of the flukes as well as their points are strengthenedby such integral blades.

Inv the invention described in the above patent the head is formed on anarc of a circle, and it is found in practice, that when the shank islifted, as by the vessel passing over it, the anchor is apt to seatitself on the head so that the flukes extend upward and are en- 'tirelyout of contact with the bottom. In this position the anchor may rest onthe bottom and perhaps be moved along, without engaging the bottom atall. This defect is obviated by my invention in which the head of eachfluke, instead of being convex and on an arc of a circle, is formed withthree corners or bearing projections, namely, the outer corners H andthe upper and lower corners H. Between the corners H and the corner Hthe head is concave or falls away as shown at H". Moreover the outersides of the heads are chambered or hollowed out at L so that the edgesH of the parts H are concave as shown in Fig. 1. The effect ofthisformof the head is that when the shank is raised, sufficiently to disengagethe flukes from the bottom, theanchor, instead of seating itself on itshead immediately falls in one direction or another, either directly overor cornerwise, on account of the concavities H", the concave edges H ofsaid concavities H, and the protuberating corners or edges H H, and theends of said corners or edges 11"", and the flukes immediately engagethe bottom.

In constructing my improvement I have not in any manner departed fromthe Babbitt invention so far as to lose any of the advantages thereof.

Having thus fully described my invention, roo

what I claim, and desire to secure by Letters recessed on their sides atL and said flakes Patent, is-- being pivotally secured to the shank,sub- In an anchor of the character described, the stantially as setforth. flukes provided with the heads constructed CLINTON SPROAT. 5 withthe projecting corners 1-1 H, connected Witnesses:

by the concave or depressed webs H" and the HENRY W. WILLIAMS,protuberating corners H" said heads being E. A. WOODBURY.

